Question

(Medal given to best answer)
2. A triangular pyramid begins with these coordinates:
P: (0, 5, 4)
Y: (–2, 7, 4)
R: (0, 7, 4)
A: (0, 7, 6)
The pyramid is then reflected over the xz-plane. The reflected image is then translated 3 units back, 2 units left, and 4 units up. Determine the coordinates of that final image, following these steps:
• Write the general rule you use for the reflection.
• Show the results of your calculations for the reflection.
• Write the general rule you use for the translation.
•Show the result of your calculations for the translation.

Answer 1

can you please help me out @ganeshie8

Answer 2

and @sleepyjess

Answer 3

I know how to do this but are you asking for help or for me to do it for you?

Answer 4

Correction: I know how to draw it.. not how to answer those questions.

Answer 5

help and show so I know how to do it next time

Answer 6

Ok. One sec.

Answer 7

Do you know how to graph the original pyramid using this?

Answer 8

@Zolock

Answer 9

yeah im pretty sure i can but its still hard for me to draw on the 3 coordinate graph

Answer 10

Here is a really good explanation. http://www.wikihow.com/Plot-Points-in-Three-Dimensions Brush up on it and then try to plot it.

Answer 11

Then once you are done with the original graph, you take every x variable and subtract three from it. Add two to every y, and 4 to every z variable. Regraph and you have your transformation.